/**
 * @Author lzc
 * @Date 2022/10/6 14:28
 */
public class Demo1 {
    public static void main(String[] args) {
        String s = "id,activity_id,sku_id,create_time";
    
        System.out.println(s.replaceAll("[^,]+", "$0 varchar"));
    }
}
